Improvement in plaiting-machines



i :UNrrED- rares Arent? trios.

siMoN srERNs, or New YORK, N. Y.

IMPROVEMENT IN PLAITINGQMACHINES.

Specification forming part of Letters Patent N0. 97.7221, dated December7, 1869.

To all whom t may concern:

Be it known that I, SIMON STERNs, of New York, in the county of New Yorkand State of New York,` have invented certain new and usefulImprovements in Blaiting-Machines; and I do hereby declarethat thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanying drawings, and to the letters of referencemarked thereon, which form a part of this specification.

The nature of my invention consists in the construction and generalarrangement of a machine for making ruffles, as will be hereinafterfully set forth. 1

In order to enable `others skilled in the art to which my inventionappertains to make and use the same, I will now proceed to describe itsconstruction-and operation, referring to the `annexed drawings, inwhich- Figure 1 is a longitudinal vertical section, and Fig.Y 2 is aplan View, of my machina A represents the bed of the machine, on which,at a suitable distance apart, are placed vtwo standards, B B. `Theselstandards are slotted vertically from the top downward for a suitabledistance, and contain in the bottom of said slots journal-boxes C C, inwhich a shaft, D, has its bearings. On the center of this shaft isplaced aroller, E, of any desired width, having a series of teeth alongits outer circumference extending acrossits entire width, Th@ teethonthe/roller E are cut so as to-form very acute angles, as seen in Fig. l.

On top of the journal-boxes G G,- in the slots on the standards B B, areplaced blocks F F, on Jrop of which are other journal-boxes, G G,providing bearings for the shaft I-I, which thus is placed above andparallel with the shaftD above mentioned. The shaft I-I is also in itscenter provided with a roller, I, of the same size as the lower roller,E, and having the same number of teeth; but these latter teeth do notform such acute angles as those on the lower roller. y Thetwo rollers Eand I gear with cach other, and the .upper roller is pressed down uponthe lower by means of set screws a a, which pass through bars b b,covering the upper ends of the slotted standards B B. The

set-screws 4a ct bear upon spring-plates d d,

placed on the top of the boxes Gr G, andby er thick or thin, to passbetween them, at the same time as the spring-plates d d give the upperroller, I, the necessary elasticity.

Upon one end of the shaft D, outside of the standard B, is keyed a largecog-wheel, J, which receives its motion from a pinion, K, upon the endof the drivingshaft L. The shaft L has its bearings in suitablejournalboxes on two inclined arms, M M', extending l from the standardsB B, and the shaft is turned by a crank. Upon the other end ofthe shaftD is a cog-wheel, which gears with a similar wheel upon the end of theshaft I-I, and thus the necessary rotary motion is communicated to therollers E and L. 'p

Between guides on the inner sides of the armsM Mis placed a plate, N,having such inclination as to come,when forced downward, directly on theunder side of the teeth on the lower roller, E, pressing the fabric inunder said teeth. This movement of the plate N is accomplished by meansof two double cams, O O, mounted upon the drivingshaft L. The cams O Oand the gearing above mentioned for revolving the rollers E and I are sogaged or arranged that the plate N will be forced downward under eachand every tooth of the roller E in succession, two springs, e e,attached t0 said plate, throwing it up away `from the roller the instantthe cams have ceased to opcrate. Y

Upon a cross-bar connecting the two standards B B at the top is pivoteda lever, P, the frontend of which is curved downward and forward, asshown in Fig. l, andis acted upon by a double cam, R, mounted upon thecenter ofthe drivinglshaft L.

At the rear end of the lever B is a vertical rod, S, to the lower end ofwhich is secured the foot T, whose under side is beveled to correspondwith the incline of the tableV,which is secured to the standards B B,and across which the rufiie has to pass after coming out from betweenthe rollers vE and I.

The cam R, during each revolution of the main shaft L, raises the footor hamm er T twice. and allows it to fall downsuddenly upon the ruffle,to press it into theproper shape for sewing in the usual manner.

The working of the machine is very simple.

' this means the two rufl'ling-rollers may be reg- 1 The rollers E aud Iare heated and the crank ulated so as to allowanykind of fabric,wheth lturned from right to left.

O O and R, lever P, foot T, and table W, all

what I claim as new, and desire to secure by constructed and arranged tooperate substan- Letters Patent, is tia-Hy in the manner and for thepurposes l. The sliding plate N, arranged to operate I herein sct forth.

Having thus fully described my invention,

Substantially in the manner and for the pur- In testimony that I claimthe foregoing as pose described. my own I affix my signature in presenceof two 2. The lever P, provided with vertical rod witnesses.

S, to which 1s attached foot T, operating 1n SIMON STERNS.

the manner and for the purpose set forth.

3. The combination and arrangement of the slotted standards B B, shaftD, with roller E, adjustable shaft H, with roller l, plate N, cams

